Mr. Triatic could you please give me some more information about tube buffer that you are using in this amp?
Thanks.
Thanks.
Very nice, i want to build the same kit and i'm looking for 12v trigger, could you give please any further information about relay for 12V triggering
sny
hi sny
greetings nice amplifier do you sell kits and if selling can you quote price
thanking you
andrew lebon
hi sny
greetings nice amplifier do you sell kits and if selling can you quote price
thanking you
andrew lebon
Connex NXD 8950th project
First drill holes for mounting print and mains transformer. Then cut 3 mm metric threads with the threader. I have divided my heatsink in two, so I have to stereo amps. The mains transformer is 250 volt primary 2*25 volt secondary 300 VA giving 25 volt x 1,414 = 35,4 volts DC (I haven't calculated with overvoltage in my home installation and the loss in the rectifier bridge - but the modules can take a max. of 40 volts DC, so I shopuld be on the safe side).
Connecting mains tranformer requires soldering thinner cables, since the mounting wholes on the board at to small. Both speaker out and DC in are sitting very close to each other, so be carefull not to make any shortcuts.
I have 10 modules and have testet 5 of these. All worked perfectly.
First drill holes for mounting print and mains transformer. Then cut 3 mm metric threads with the threader. I have divided my heatsink in two, so I have to stereo amps. The mains transformer is 250 volt primary 2*25 volt secondary 300 VA giving 25 volt x 1,414 = 35,4 volts DC (I haven't calculated with overvoltage in my home installation and the loss in the rectifier bridge - but the modules can take a max. of 40 volts DC, so I shopuld be on the safe side).
Connecting mains tranformer requires soldering thinner cables, since the mounting wholes on the board at to small. Both speaker out and DC in are sitting very close to each other, so be carefull not to make any shortcuts.
I have 10 modules and have testet 5 of these. All worked perfectly.
Attachments
1st build 5 channel TDA8924
1st build. 5 channel.
Connexelectronic
1st build. 5 channel.
Connexelectronic
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
The Padauk plank I will mount on the front An externally hosted image should be here but it was not working when we last tested it.
Very nice. Which chips have you? I have 8950th, but still miss to finalise my project, even though it's beginning to look like it's finished.
Could you tell about the sound quality?
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Member
Joined 2002
Nice work guys, i might look into building a class d 5 channel soon too. Will use it with a processor.
Thanks.
Chips are, 4 TDA8924 modules, 3 bridged for the front 3 speakers and one in stereo mode for the surrounds.
Sound quality is pretty good, except the highs are a bit edgy.
I can't see a common clock, are you running the modules with their internal clock (not recommended in the datasheet).
First class D build
IcePower 1000ASP monos. Currently awaiting parts for rewiring.
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You guys do impressive work!
Class D amps always surprise me. Its just amazing the amount of power packed into such a small board.
Class D amps always surprise me. Its just amazing the amount of power packed into such a small board.
More pics of my NXP TDA8950th amps
all pictures
HIFI billeder - Windows Live
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
all pictures
HIFI billeder - Windows Live
T-Amp from a Nodus Psyclone PSP powered speaker system, installed inside a Rat Shack Minimus 7. Power via external 13.8V brick. Speaker in terminals are now power output to left speaker.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
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Coil Pile
These are all of the coils I have tried so far. Of the shielded, cored inductors the little Wurth XXL sound the best.
http://www.diyaudio.com/forums/clas...path-board-tc2000-tp2050-109.html#post2111085
These are all of the coils I have tried so far. Of the shielded, cored inductors the little Wurth XXL sound the best.
http://www.diyaudio.com/forums/clas...path-board-tc2000-tp2050-109.html#post2111085
